The End of the Financial World as We Know It | AlternetIn the "Highly Likely" scenario, wrote Mr Markopolos, "Madoff Securities is the world's largest Ponzi Scheme " Which, as we now know, it was Harry Markopolos sent his report to the S E C on Nov 7, 2005 -- more than three years before Mr Madoff was finally exposed -- but he had been trying to explain the fraud to them since 1999